kilaueabart wrote:Well, if you are reading this, that means I was able to boot my new DVD, and also to find my Hyperion password on the password list on my original HD install of MATE.

Many thanks for testing. I am glad that you was able to boot the live DVD.

kilaueabart wrote:Later, I decided to find out for myself, and tried running the install program figuring I could stop at any point. It dies immediately without doing anything.

If the default installer doesn't work for you, then you can open the new install script via the command ubunu-install but I think you don't need to install ubuntu MATE again because you have already installed it.

kilaueabart wrote:Otherwise, apparently the only value to having the disk is as backup in case my working MATE crashes. I might be able to save data from it via this DVD install even if I can no longer boot the one I use now.

Yes, that's right. After saving the data via the DVD, you can install it with ubunu-install again.

kilaueabart wrote:Anyway, very interesting experience. Thanks, Christian, for making it possible.

kilaueabart wrote:Later, I decided to find out for myself, and tried running the install program figuring I could stop at any point. It dies immediately without doing anything.

If the default installer doesn't work for you, then you can open the new install script via the command ubunu-install but I think you don't need to install ubuntu MATE again because you have already installed it.

Yes, I have 16.04 installed. (Is it 16.04.1? Not sure.) However, I would like to try upgrading to 16.10, and I don't want to take the chance of ruining the one I have working perfectly with lots of important files and applications on it. I have discovered that I have a real talent for messing up installations, so would like to make another 16.04 to work with.

Actually, I think I do have another 16.04 that doesn't work right, or at least I have a 16.10 that I tried with only limited success to upgrade from a different 16.04 install and I want to replace it with one that really works, just in case it is better than 16.04 in some ways.